diff --git a/.github/workflows/release-upload-zip.yml b/.github/workflows/release-upload-zip.yml
index ded636c..d360e21 100644
--- a/.github/workflows/release-upload-zip.yml
+++ b/.github/workflows/release-upload-zip.yml
@@ -5,6 +5,9 @@ on:
     tags:
       - 'v*'   # v1.3.0.0 など
 
+permissions:
+  contents: write
+
 env:
   FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true